Answer:
There are 8 friends and the presents costs $30,000
Step-by-step explanation:
Let x be the number of students and y be the price of the present. Their contributions can be expressed as:
#Make y the subject in equation i then substitute in ii:
Hence, there are 8 friends and the present is priced at $30,000
All you have to do is divide 32 by 4 which should be 8. Since 4 times means that she has four times more you have to divide by it to find the original answer.
The amount of money Savannah will have after 10 days is $0.35
<h3>Convert penny to dollar</h3>
Amount Savannah started with = 5 pennies
= $0.01 × 5
= $0.05
Additional amount per day = 3 pennies
= $0.01 × 3
= $0.03
Total savings in 10 days = 0.05 + 0.03(10)
= 0.05 + 0.3
= $0.35
Number of days it will take for her to have at least $1.50 = 0.05 + 0.03d
1.50 - 0.05 = 0.03d
1.45 = 0.03d
d = 1.45 / 0.03
d = 48.33333333333333
Approximately,
d = 48.33 days
Therefore, the number of days it will take for her to have at least $1.50 us 48.33 days
Learn more about pennies:
brainly.com/question/5193496
#SPJ1
Answer:
0.66(1.1 ^n -1)
Step-by-step explanation:
They are in GP!
S = (6.6)(1.1 ^n -1)÷(0.1)
3x+5y=43
x=8+y
3(8+y)+5y=43
24+3y+5y=43
8y=19
y=19/8 = 2.375
x=8+2.375 = 10.375
10.375*3=31.125
5*2.375=11.875
31.125+11.875 = 43
10.375 gallons of gas ( round to 10.38)
2.375 gallons of diesel (round to 2.38)
